US6128511A - Card-equipped portable telephone with a security feature - Google Patents

Card-equipped portable telephone with a security feature Download PDF

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Publication number
US6128511A
US6128511A US08/901,242 US90124297A US6128511A US 6128511 A US6128511 A US 6128511A US 90124297 A US90124297 A US 90124297A US 6128511 A US6128511 A US 6128511A
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US
United States
Prior art keywords
telephone set
portable telephone
card
set body
power supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/901,242
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English (en)
Inventor
Makoto Irie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenovo Innovations Ltd Hong Kong
Original Assignee
NEC Corp
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Filing date
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Assigned to NEC CORPORATION reassignment NEC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IRIE, MAKOTO
Assigned to NEC CORPORATION reassignment NEC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IRIE, MAKOTO
Application granted granted Critical
Publication of US6128511A publication Critical patent/US6128511A/en
Assigned to LENOVO INNOVATIONS LIMITED (HONG KONG) reassignment LENOVO INNOVATIONS LIMITED (HONG KONG) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NEC CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H04M1/675—Preventing unauthorised calls from a telephone set by electronic means the user being required to insert a coded card, e.g. a smart card carrying an integrated circuit chip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • H04M1/673—Preventing unauthorised calls from a telephone set by electronic means the user being required to key in a code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to a card-equipped portable telephone set with excellent security which is set in a usable state when a user inputs a password, and allows easy management.
  • a card unit is added to a conventional card-equipped portable telephone set of this type to add various functions to a portable telephone set equipped with no card.
  • Japanese Patent Laid-Open No. 3-76364 discloses a technique of changing the function settings of the push keys by using various types of IC cards (a sales management card, a telephone directory card, individual customer cards, and the like) prepared in accordance with functions. According to this technique, a compact portable telephone set can be effectively used by using different IC cards in accordance with application purposes.
  • IC cards a sales management card, a telephone directory card, individual customer cards, and the like
  • Japanese Patent Laid-Open No. 4-14916 discloses a portable telephone set which serves as a receive-only telephone set when no card is inserted, but allows an originating operation when a card is inserted. According to this portable telephone set, a destination telephone number is input through a ten-keypad prepared on the card, and the card in which the destination telephone number is input is inserted into the portable telephone set, thereby allowing an originating operation. Even if, therefore, the portable telephone set is lost or stolen, no originating call can be illegally generated unless the card is inserted in the telephone set.
  • a conventional card-equipped portable telephone set incorporates all the essential functions of the portable telephone set, and cards are used to add additional functions. That is, even if no card is inserted in the portable telephone set, since identification information and the like are stored in the main body of the telephone set, it can be used as a portable telephone set even though some restrictions are imposed thereon.
  • a portable telephone set comprising a card having a first memory in which identification information and a password of a subscriber are stored in advance, a portable telephone set body having at least radio means for transmitting/receiving a radio signal, and adapted to perform originating and terminating operations, card insertion detecting means for detecting insertion of the card in the portable telephone set body, and control means for setting the portable telephone set body in a password input wait state when insertion of the card is detected by the card insertion detecting means and a power supply of the portable telephone set is turned on while the card is inserted therein, and for setting the portable telephone set body in a wait state allowing originating and terminating operations only when a correct password is input in the password input wait state.
  • FIG. 1 is a perspective view of a portable telephone set according to the present invention
  • FIG. 2 is a block diagram showing the circuit arrangement of the portable telephone set in FIG. 1;
  • FIG. 3 is a flow chart showing the operation of the first embodiment of the portable telephone set of the present invention.
  • FIG. 4 is a flow chart showing the operation of the second embodiment of the portable telephone set of the present invention.
  • FIG. 5 is a flow chart showing the operation of the third embodiment of the portable telephone set of the present invention.
  • FIG. 6 is a flow chart showing the operation of the fourth embodiment of the portable telephone set of the present invention.
  • FIG. 7 is a flow chart showing the operation of the fifth embodiment of the portable telephone set of the present invention.
  • FIG. 1 shows a portable telephone set according to the present invention.
  • reference numeral 1 denotes a portable telephone set body; and 2, an individual information card (to be referred to as a card hereinafter) incorporating a storage unit in which identification information and a password are stored in advance.
  • the card 2 is inserted in a card slot 3 when the portable telephone set body 1 is used.
  • the card slot 3 has a reception connector. (not shown) for electrical connection to the card 2.
  • Reference numeral 4 denotes a display section for displaying an input telephone number and the like; 5, an input keypad which is used by the user to input a telephone number and the like; 6, an ejection button for removing the card 2 from the portable telephone set body 1; 14, a first power supply key of the portable telephone set body 1; and 15, a second S power supply key of the portable telephone set body 1.
  • FIG. 2 shows the circuit arrangement of the portable telephone set in FIG. 1.
  • reference numeral 7 denotes a card insertion detecting circuit for detecting insertion of the card 2 having a ROM 2a; 8, a power supply control circuit for ON/OFF-controlling a control section power supply 9 in accordance with the detection output from the card insertion detecting circuit 7; 10, a CPU (Central Processing Unit) for controlling the overall portable telephone set; 11, a radio section power supply for supplying power to a radio section 19, an originating circuit 20, a terminating circuit 21, a talking circuit 22, and the like; 12, a memory which stores control programs for the CPU 10 and to which power is supplied from the control section power supply 9; 13, an EEPROM (Electrically Erasable and Programmable Read Only Memory) used by the CPU 10 to store information obtained during a process when the power supply is turned off by the first power supply key 14; 17, a control RAM (Random Access Memory) used by the CPU 10 to store information obtained during a process when the power supply is turned off by the second
  • Identification information and a password are recorded as pieces of individual information on the ROM 2a incorporated in the card 2.
  • a terminal (not shown) is formed on the card 2 to exchange signals with the portable telephone set.
  • the above identification information includes a subscriber number length, a subscriber number (MSN), an MSK-key, a mobile station number length, a mobile station number (MSI), an MSI-key, a mobile station classification, a home perch channel number, a roaming destination 1 perch channel number, a roaming destination 2 perch channel number, an operator intrinsic area, home network information, roaming destination network 1 information, roaming destination network 2 information, and roaming mode information. These pieces of information are written in the card 2 in the shop.
  • the portable telephone set body 1 is set in three types of power-off states, i.e., power-off state a, power-off state b, and power-off state c.
  • power-off state a the power supply is in the OFF state while the card 2 is not inserted in the portable telephone set body 1.
  • power-off state b the power supply is in the OFF state while the card 2 is inserted in the portable telephone set body 1 and no password information is stored in the EEPROM 16 and the RAM 17.
  • the password must be input.
  • the power supply In power-off state c, the power supply is in the OFF state while the card 2 is inserted in the portable telephone set body 1 and the password information is stored in the EEPROM 16 or the RAM 17.
  • the wait state can be immediately set without inputting the password.
  • step S101 the portable telephone set is set in the wait state to wait for insertion of the card 2 in power-off state a.
  • step S102 it is checked whether the card 2 is inserted in the card slot 3. If YES in step S102, the flow advances to step S103. If NO in step S102, the flow returns to step S101.
  • the card insertion detecting circuit 7 determines insertion of the authentic card 2.
  • step S104 the power supply control circuit 8 turns on the control section power supply 9. When the control section power supply 9 is turned on, the CPU 10 starts operating. The CPU 10 loads the control programs stored in the memory 12. The flow then advances to step S105 to set a password input mode. At this time, the display section 4 is set in a password display mode.
  • step S107 When the user inputs a password through the input keypad 5 in step S106, the CPU 10 checks in step S107 whether the password stored in the ROM 2a coincides with the input password. If YES in step S107, the flow advances to step S110. If NO in step S107, the flow advances to step S108.
  • step S108 the control section power supply 9 is turned off to set power-off state b.
  • the user turns on the power supply by depressing the first power supply key 14 in step S109 while the card 2 is inserted, the flow returns to step S104.
  • step S110 and the radio section power supply 11 is turned on, the wait state for communication is set through a normal procedure in the portable telephone set.
  • step S111 when the user depresses the first power supply key 14 in the step S111, power-off state b is set in step S108. According to the first embodiment, therefore, the portable telephone set cannot be used unless the password is input when the card 2 is inserted and when the power supply is turned on. With this operation, security can be ensured.
  • steps S201 to S210 are the same as steps S101 to S110, a description thereof will be omitted.
  • the CPU 10 when the user depresses the first power supply key 14 in step S211, the CPU 10 saves the information obtained up to step S207 in the EEPROM 16 in step S212.
  • step S213 power-off state c is set, in which the process information is saved in the EEPROM 16 in step S213.
  • the CPU 10 reads out the information saved in the EEPROM 16 in step S215, and returns to the wait state in step S210.
  • the portable telephone set cannot be used unless the password is input when the card 2 is inserted. Once the input password coincides with the stored password, the portable telephone set can be used without inputting the password again when the power supply is turned on again as long as the card 2 is inserted in the telephone set.
  • step S301 to S310 are the same as steps S101 to S110 in FIG. 3, a description thereof will be omitted.
  • step S313 when the user depresses the first power supply key 14 in step S311, the information obtained up to step S307 is saved in the control RAM 17 in step S312.
  • step S313 power-off state c is set, in which the process information is stored in the RAM 17. If it is determined in step S316 that a predetermined period of time has not elapsed since the power supply was turned off, for example, power is left in the control RAM battery 18, the flow advances to step S314.
  • step S314 When the user depresses the first power supply key 14 in step S314, the CPU 10 reads out the information saved in the RAM 17 in step S315. Thereafter, the wait state in step S310 is set. If it is determined in step S316 that the predetermined period of time has elapsed, for example, no power is left in the control RAM battery 18, all the information in the control RAM 17 is lost, and the current state is switched to power-off state b in step S308.
  • the portable telephone set can be used by inputting the password when the card 2 is inserted.
  • the portable telephone set can be used without inputting the password again when the power supply is turned on again within a predetermined period of time after the power supply is turned on.
  • a lapse of the predetermined period of time is determined on the basis of the remaining power of the control RAM battery 18.
  • the predetermined period of time may be counted by a timer circuit.
  • a lapse of the predetermined period of time and the remaining power in the control RAM battery 18 may be separately checked in a time-serial manner.
  • step S417 the user depresses the first power supply key 14 or the second S power supply key 15 to turn off the power supply. If the user depresses the first power supply key 14, power-off state b in step S408 is set as in the case of determination of password incoincidence in step S408. If the user depresses the second S power supply key 15 in step S417, the information obtained up to step S407 is saved in the EEPROM 16 in step S418. In step S419, power-off state c is set. Thereafter, when the user depresses the first power supply key 14 to turn on the power supply in step S414, the information saved in the EEPROM 16 is loaded in step S415, and the wait state in step S410 is set, thereby immediately allowing communication.
  • the portable telephone set cannot be used unless the password is input when the card 2 is inserted and when the power supply is turned on again after the first power supply key 14 is depressed to turn off the power supply.
  • the portable telephone set can be used without inputting the password.
  • step S517 the user depresses the first power supply key 14 or the second S power supply key 15 to turn off the power supply. If the user depresses the first power supply key 14, power-off state b in step S508 is set as in the case of determination of password incoincidence in step S507. If the user depresses the second S power supply key 15 in step S517, the information obtained up to step S507 is saved in the control RAM 17 in step S512, and power-off state c is set in step S513.
  • step S516 If it is determined in step S516 that no power is left in the control RAM battery 18, all the information in the control RAM 17 is lost, and the current state is switched to power-off state b in step S508. If it is determined that power is left, the flow advances to step S514. When the user depresses the first power supply key 14, the contents of the control RAM are read out in step S515, and the wait state in step S510 is set, thereby immediately allowing communication.
  • the portable telephone set cannot be used unless the password is input when the card 2 is inserted and when the power supply is turned on again after the first power supply key 14 is depressed to turn off the power supply. If the power supply is turned on again within a predetermined period of time after the power supply is turned off by depressing the second S power supply key 15, the portable telephone set can be used without inputting the password again. After the predetermined period of time elapses, the portable telephone set can be used by inputting the password.
  • each embodiment described above the EEPROM 16, the control RAM 17, and the control RAM battery 18 are incorporated in the portable telephone set body 1. However, these components may be incorporated in the card 2.
  • each embodiment includes two types of power supply keys, i.e., the first power supply key 14 and the second S power supply key 15. However, one power supply key may be a combination of the other power supply key and another arbitrary key. Alternatively, the power supply keys may be assigned to arbitrary keys by means of software.
  • the user In using the portable telephone set, the user needs to input the password when an individual information card is inserted in the portable telephone set. This mechanism provides excellent security against the loss and theft of the portable telephone set.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mobile Radio Communication Systems (AREA)
US08/901,242 1996-07-31 1997-07-25 Card-equipped portable telephone with a security feature Expired - Lifetime US6128511A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8202605A JP3056080B2 (ja) 1996-07-31 1996-07-31 携帯電話機
JP8-202605 1996-07-31

Publications (1)

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US6128511A true US6128511A (en) 2000-10-03

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US (1) US6128511A (fr)
EP (3) EP2079272A3 (fr)
JP (1) JP3056080B2 (fr)
CN (1) CN1146272C (fr)
AU (1) AU724389B2 (fr)
DE (1) DE69739499D1 (fr)

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US20020045457A1 (en) * 2000-09-27 2002-04-18 Nec Corporation Shared-use portable telephone and method of sharing portable telephone
US20020115481A1 (en) * 2001-02-22 2002-08-22 Kabushiki Kaisha Toshiba Electronic device having power saving function and extension unit
US20030008637A1 (en) * 1999-03-08 2003-01-09 Harri Vatanen System and method for implementing secure mobile-based transactions in a telecommunication system
US20030181219A1 (en) * 2002-03-19 2003-09-25 June-Kewi Huang Method of indicating unauthorized use of a mobile terminal
US20030189096A1 (en) * 2002-04-08 2003-10-09 Nokia Corporation Mobile terminal featuring smart card interrupt
US20030190935A1 (en) * 1999-09-20 2003-10-09 Pinder Ellis Arthur Access control method utilizing a key battery
US6662023B1 (en) * 2000-07-06 2003-12-09 Nokia Mobile Phones Ltd. Method and apparatus for controlling and securing mobile phones that are lost, stolen or misused
US20050020315A1 (en) * 2003-07-22 2005-01-27 Robertson Ian M. Security for mobile communications device
US20060025177A1 (en) * 2004-07-28 2006-02-02 Mediatek Inc. Mobile communication apparatus having anti-theft and auto-notification functions
US20070032268A1 (en) * 2005-08-02 2007-02-08 Gotfried Bradley L Communications device and card
US20070057038A1 (en) * 2005-09-15 2007-03-15 Capital One Financial Corporation Wireless devices for storing a financial account card and methods for storing card data in a wireless device
US20070082705A1 (en) * 2005-07-25 2007-04-12 Mediatek Inc. Mobile communication apparatus having anti-theft and auto-notification functions
US20090055925A1 (en) * 2007-08-24 2009-02-26 Fuji Xerox Co., Ltd. Image forming apparatus, method for management of authenticating information and computer readable medium storing program thereof
US7753280B1 (en) * 2008-09-03 2010-07-13 Marcus Howard Personal bank card storage device and method of use
CN101356552B (zh) * 2005-11-14 2012-08-08 德雷瑟股份有限公司 燃油加油机管理
US9528539B2 (en) 2009-05-06 2016-12-27 Duerr Systems Gmbh Coating agent device and coating device

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FR2791509A1 (fr) * 1999-03-22 2000-09-29 Jean Pierre Mermet Dispositif antivol pour telephone mobile
JP3424639B2 (ja) 2000-02-22 2003-07-07 日本電気株式会社 電子機器及び固有情報管理方法
US7757094B2 (en) 2001-02-27 2010-07-13 Qualcomm Incorporated Power management for subscriber identity module
EP1835770B1 (fr) 2001-02-27 2010-05-26 Qualcomm, Incorporated Gestion d'énergie pour module d'identité relatif à un abonné
US7137003B2 (en) 2001-02-27 2006-11-14 Qualcomm Incorporated Subscriber identity module verification during power management
DE10132585A1 (de) * 2001-07-05 2003-01-16 Siemens Ag Mobiltelefon
FR2842060B1 (fr) 2002-07-04 2004-12-31 Cit Alcatel Procede de securisation d'un terminal mobile de telecommunication
KR100496954B1 (ko) * 2002-12-12 2005-06-28 엘지전자 주식회사 다중 사용자 환경 지원 핸드폰
JP4135669B2 (ja) 2004-04-09 2008-08-20 日本電気株式会社 携帯電話機、該携帯電話機に用いられる個人データ管理方法及び管理制御プログラム
JP2006074111A (ja) * 2004-08-31 2006-03-16 Kyocera Corp 携帯電話機及びその付属機能起動方法
JP4778579B2 (ja) * 2009-10-30 2011-09-21 富士通東芝モバイルコミュニケーションズ株式会社 移動無線端末
JP2013012215A (ja) * 2012-08-17 2013-01-17 Fuji Xerox Co Ltd 画像形成装置と認証情報管理方法およびプログラム
CN108241310B (zh) * 2018-01-22 2021-06-11 宁波白金汉爵酒店投资有限公司 酒店房间状态控制方法、装置及系统

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EP2079271A2 (fr) 2009-07-15
AU3238597A (en) 1998-02-05
JP3056080B2 (ja) 2000-06-26
EP0822730B1 (fr) 2009-07-22
JPH1051372A (ja) 1998-02-20
EP2079272A2 (fr) 2009-07-15
EP0822730A2 (fr) 1998-02-04
AU724389B2 (en) 2000-09-21
EP2079271A3 (fr) 2009-08-05
EP2079272A3 (fr) 2009-08-05
CN1146272C (zh) 2004-04-14
CN1176570A (zh) 1998-03-18
EP0822730A3 (fr) 1999-08-18

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